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Hann Trier was a German abstract expressionist watercolourist and graphic artist. Hann Trier is best known for his giant ceiling paintings in the Charlottenburg Palace. He was the older brother of the art historian Eduard Trier (1920-2009).


Bernard Schultze was a German painter who co-founded the Quadriga group of artists along with Karl Otto Götz and two other artists.


Norbert Prangenberg was an abstract painter, sculptor, and engraver. Though he had no formal training and did not fully engage with art until his 30s, Prangenberg did finally come up with a style that was uniquely his own, not fitting comfortably into the neo-expressionist or neo-geo movements of his time, in the 1970s and 1980s. At this time, he was considered a major figure in contemporary German art. Though he got his start with abstract paintings, he also became known for making sculptures of all sizes; and while his work initially appears abstract, the titles given sometimes allude to the human body or a landscape. As a trained gold- and silversmith, as well as a glassblower, he always showed an attention to materials and how they could be physically engaged with. He was interested in how his own two hands could affect the painting or sculpture's surface. Traces of the artist's hand appear literally throughout his entire oeuvre, before he lost the battle with liver cancer in 2012.


Otto Piene was a German-American artist specializing in kinetic and technology-based art, often working collaboratively.


Sol LeWitt was an American artist linked to various movements, including conceptual art and minimalism.
LeWitt came to fame in the late 1960s with his wall drawings and «structures» (a term he preferred instead of «sculptures») but was prolific in a wide range of media including drawing, printmaking, photography, painting, installation, and artist's books.
